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公开(公告)号：US12153858B2
公开(公告)日：2024-11-26
申请号：US16800735
申请日：2020-02-25
Applicant: QUALCOMM Incorporated
Inventor： Taher Shahbazi Mirzahasanloo , Rogerio Guedes Alves , Lae-Hoon Kim , Erik Visser , Dongmei Wang , Fatemeh Saki
IPC: G10L15/08 , G02B27/01 , G06F3/01 , G06F3/16 , G06T19/00 , G10L15/20 , G10L17/00 , H04R1/10 , H04R5/033
Abstract: In general, techniques are described that enable voice activation for computing devices. A computing device configured to support an audible interface that comprises a memory and one or more processors may be configured to perform the techniques. The memory may store a first audio signal representative of an environment external to a user associated with the computing device and a second audio signal sensed by a microphone coupled to a housing of the computing device. The one or more processors may verify, based on the first audio signal and the second audio signal, that the user activated the audible interface of the computing device, and obtain, based on the verification, additional audio signals representative of one or more audible commands.
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公开(公告)号：US11849274B2
公开(公告)日：2023-12-19
申请号：US17357019
申请日：2021-06-24
Applicant: QUALCOMM Incorporated
CPC classification number: H04R1/1083 , G10K11/16 , H04R1/1016 , G10K2210/1081 , H04R2420/07 , H04R2460/01
Abstract: Methods, systems, computer-readable media, and apparatuses for audio signal processing are presented. A device for audio signal processing includes a memory configured to store instructions and a processor configured to execute the instructions. When executed, the instructions cause the processor to receive an external microphone signal from a first microphone and produce a hear-through component that is based on the external microphone signal and hearing compensation data. The hearing compensation data is based on an audiogram of a particular user. The instructions, when executed, further cause the processor to cause a loudspeaker to produce an audio output signal based on the hear-through component.
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公开(公告)号：US11606643B2
公开(公告)日：2023-03-14
申请号：US17530320
申请日：2021-11-18
Applicant: QUALCOMM Incorporated
Inventor： Lae-Hoon Kim , Rogerio Guedes Alves , Jacob Jon Bean , Erik Visser
IPC: H04R3/04
Abstract: Methods, systems, and devices for signal processing are described. Generally, as provided for by the described techniques, a wearable device to receive an input audio signal from one or more outer microphones, an input audio signal from one or more inner microphones, and a bone conduction signal from a bone conduction sensor based on the input audio signals. The wearable device may filter the bone conduction signal based on a set of frequencies of the input audio signals, such as a low frequency portion of the input audio signals. For example, the wearable device may apply a filter to the bone conduction signal that accounts for an error in the input audio signals. The wearable device may add a gain to the filtered bone conduction signal and may equalize the filtered bone conduction signal based on the gain. The wearable device may output an audio signal to a speaker.
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公开(公告)号：US11259119B1
公开(公告)日：2022-02-22
申请号：US17064146
申请日：2020-10-06
Applicant: QUALCOMM Incorporated
Inventor： Lae-Hoon Kim , Rogerio Guedes Alves , Jacob Jon Bean , Erik Visser
IPC: H04R3/04
Abstract: Methods, systems, and devices for signal processing are described. Generally, as provided for by the described techniques, a wearable device to receive an input audio signal from one or more outer microphones, an input audio signal from one or more inner microphones, and a bone conduction signal from a bone conduction sensor based on the input audio signals. The wearable device may filter the bone conduction signal based on a set of frequencies of the input audio signals, such as a low frequency portion of the input audio signals. For example, the wearable device may apply a filter to the bone conduction signal that accounts for an error in the input audio signals. The wearable device may add a gain to the filtered bone conduction signal and may equalize the filtered bone conduction signal based on the gain. The wearable device may output an audio signal to a speaker.
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公开(公告)号：US10559315B2
公开(公告)日：2020-02-11
申请号：US16045496
申请日：2018-07-25
Applicant: QUALCOMM Incorporated
Inventor： Taher Shahbazi Mirzahasanloo , Rogerio Guedes Alves
IPC: G10L19/00 , G10L19/035 , G10L19/02 , H04W72/04 , G10L19/002 , H04W84/18
Abstract: A method of encoding audio data includes determining an energy level of a first subband of frequency domain audio data, determining a bit allocation for a coarse quantization process and a fine quantization process, determining that the energy level of the first subband of frequency domain audio data is outside a predetermined range of energy levels for the coarse quantization process, reallocating bits assigned to the fine quantization process to an extended-range coarse quantization process, the extended-range coarse quantization process using an extended range of energy levels, wherein the extended range of energy levels is larger than the predetermined range of energy levels for the coarse quantization process, and quantizing the energy level of the first subband of frequency domain audio data using the extended-range coarse quantization process to produce a quantized extended-range coarse energy level.
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公开(公告)号：US20190371347A1
公开(公告)日：2019-12-05
申请号：US16050914
申请日：2018-07-31
Applicant: QUALCOMM Incorporated
Inventor： Taher Shahbazi Mirzahasanloo , Rogerio Guedes Alves
IPC: G10L19/038 , G10L19/02 , G10L25/18 , H04W4/80
Abstract: In general, this disclosure describes techniques for seamless audio data compression control system that can respond to the increasing adaptation demands for source coding characteristics to accommodate co-existence of various devices in a personal area network. In one example, a source device includes a memory and one or more processors in communication with the memory. The memory is configured to store audio data. The one or more processors are configured to select, based on a nominal compression ratio or a streaming rate, a compression level of multiple compression levels, the multiple compression levels arranged hierarchically to allow for dynamic transitioning between the compression levels. The one or more processors are further configured to encode, based on the selected compression level of the multiple compression levels, the audio data stored to the memory.
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公开(公告)号：US20240331679A1
公开(公告)日：2024-10-03
申请号：US18611494
申请日：2024-03-20
Applicant: QUALCOMM Incorporated
Inventor： Vahid Montazeri , Rogerio Guedes Alves , You Wang , Jacob Jon Bean , Erik Visser
IPC: G10K11/178
CPC classification number: G10K11/17825 , G10K11/17875 , G10K2210/3026 , G10K2210/3028 , G10K2210/3038 , G10K2210/506
Abstract: This disclosure provides systems, methods, and devices for audio signal processing that support feedback cancellation in a personal audio amplification system. In a first aspect, a method of signal processing includes receiving an input audio signal, wherein the input audio signal includes a desired audio component and a feedback component; and reducing the feedback component by applying a machine learning model to the input audio signal to determine an output audio signal. Other aspects and features are also claimed and described.
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公开(公告)号：US11875767B2
公开(公告)日：2024-01-16
申请号：US18183886
申请日：2023-03-14
Applicant: QUALCOMM Incorporated
Inventor： Kamlesh Lakshminarayanan , Mark Andrew Roberts , Jacob Jon Bean , Walter Andres Zuluaga , Rogerio Guedes Alves
IPC: G10K11/175 , H04R1/10
CPC classification number: G10K11/175 , H04R1/1016 , H04R1/1041 , H04R2460/01
Abstract: Methods, systems, computer-readable media, devices, and apparatuses for synchronized mode transitions are presented. A first device configured to be worn at an ear includes a processor configured to, in a first contextual mode, produce an audio signal based on audio data. The processor is also configured to, in the first contextual mode, exchange a time indication of a first time with a second device. The time indication is exchanged based on detection of a first condition of a microphone signal. The processor is further configured to, at the first time, transition from the first contextual mode to a second contextual mode based on the time indication.
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公开(公告)号：US11615775B2
公开(公告)日：2023-03-28
申请号：US17348646
申请日：2021-06-15
Applicant: QUALCOMM Incorporated
Inventor： Kamlesh Lakshminarayanan , Mark Andrew Roberts , Jacob Jon Bean , Walter Andres Zuluaga , Rogerio Guedes Alves
IPC: G10K11/175 , H04R1/10
Abstract: Methods, systems, computer-readable media, devices, and apparatuses for synchronized mode transitions are presented. A first device configured to be worn at an ear includes a processor configured to, in a first contextual mode, produce an audio signal based on audio data. The processor is also configured to, in the first contextual mode, exchange a time indication of a first time with a second device. The processor is further configured to, at the first time, transition from the first contextual mode to a second contextual mode based on the time indication.
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公开(公告)号：US11589153B2
公开(公告)日：2023-02-21
申请号：US17201998
申请日：2021-03-15
Applicant: QUALCOMM Incorporated
Inventor： Lae-Hoon Kim , Dongmei Wang , Fatemeh Saki , Taher Shahbazi Mirzahasanloo , Erik Visser , Rogerio Guedes Alves
Abstract: Methods, systems, and devices for signal processing are described. Generally, as provided for by the described techniques, a wearable device may receive an input audio signal (e.g., including both an external signal and a self-voice signal). The wearable device may detect the self-voice signal in the input audio signal based on a self-voice activity detection (SVAD) procedure, and may implement the described techniques based thereon. The wearable device may perform beamforming operations or other separation procedures to isolate the external signal and the self-voice signal from the input audio signal. The wearable device may apply a first filter to the external signal, and a second filter to the self-voice signal. The wearable device may then mix the filtered signals, and generate an output signal that sounds natural to the user.
